Avoid triggering magisk --zygote-restart twice

We have already used on restart keyword to inject zygote restart, so
triggering it here on prop is not needed.

native/src/init/rootdir.rs

@@ -32,9 +32,6 @@ on nonencrypted
 
 on property:sys.boot_completed=1
     exec {0} 0 0 -- {1}/magisk --boot-complete
-
-on property:init.svc.zygote=stopped
-    exec {0} 0 0 -- {1}/magisk --zygote-restart
 "#,
         "u:r:magisk:s0", tmp_dir
     )